June 2002
Intermediate to advanced
704 pages
15h 6m
English
book
Sun Certification Training Guide (310-025, 310-027): Java™ 2 Programmer and Developer Exams
by Jamie Jaworski
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
How Does the Garbage Collector Work?
The Java garbage collector helps recycle memory and other resources when they are no longer needed. It consists of a separate low-priority thread of execution that executes in the background and keeps track of all the objects that are used in a Java program. When an object is no longer needed, it becomes subject to garbage collection.
At this point, you are probably wondering what it means for an object to be no longer needed and how the garbage collector determines which objects are needed and which are not. A program does not need an object that is no longer in use or that cannot be brought back into use. The garbage collector determines that an object cannot be used if it is no longer reachable by the program. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.